In the 1960s, a small band of curious young scientists made their way into the wilderness, driven by the insatiable urge to learn how nature works in different environments.
They immersed themselves in some of the most remote and spectacular places on Earth; from the majestic Serengeti to the Amazon rainforest, the Arctic Ocean to the Pacific tide pools they documented what they found. They created a single set of observations for rules that govern all life.
Now in the twilight of their impressive careers, these five unsung heroes of modern ecology share their adventures, reveal how their pioneering work flipped our view of nature on its head and give us a chance to imagine the world as it could and should be.
Unlocking Nature’s Secrets – Sunday at 11pm on BBC Four